Search EBAY for nathan air chimes, they are not cheap.. those are the 5 horn train horns.. SUPER loud!!!!!! You can feel them in your chest when you put the air to them.. A buddy has them on his rig and it is insanely loud.. the best thing is I have gotten the opportunity to scare the
of of him with his own horns and that is why I like them on his rig...LOL
